{
  "$type": "site.standard.document",
  "description": "This application discloses a negative electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The negative electrode plate disclosed in this application includes a negative electrode current collector and active material layers disposed on at least one…",
  "path": "/patents/1398728",
  "publishedAt": "2024-10-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "This application discloses a negative electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The negative electrode plate disclosed in this application includes a negative electrode current collector and active material layers disposed on at least one surface of the negative electrode current collector. The active material layers include a first active material layer and a second active material layer disposed on a surface of the first active material layer. The first active material layer includes a first active material, the second active material layer includes a second active material, and the active material layers satisfy α×CW≤CW, α being a relative factor of layer spacings, where α = d 2 d 1 and 1≤α≤1.12. Using a secondary battery obtained by using the negative electrode plate of this application can improve both rate performance and energy density of the battery.",
  "title": "NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE"
}